PostLab is a free toolkit of LinkedIn tools for B2B SaaS founders, built by Rethoric. Start with the Post Analyzer: paste your profile URL and rank your last 3 posts against monthly engagement benchmarks in 60 seconds. More tools shipping soon.
How it works
From profile to pipeline, in 3 steps.
No setup, no install, no spreadsheets. Paste your LinkedIn URL and PostLab does the rest.
Paste your LinkedIn URL
We pull your last 3 posts and your follower count. That's it. No browser extension, no LinkedIn login required.
We rank against benchmarks
Each post is scored against monthly LinkedIn engagement benchmarks for your exact follower tier.
Get a founder-friendly diagnosis
See per-post tier (Typical, Strong, Top, Breakout) plus a short read on what worked and what to do next.
The toolkit
Built for founders who ship content.
Every tool is free, fast, and scoped to one job. More shipping soon.
Post Analyzer
Rank your last 3 LinkedIn posts against benchmarks for your follower tier. Get hooks, structure, and CTA observations in 60 seconds.
More tools shipping soon
We are building the rest of the PostLab toolkit. Sign up and we will email you the moment each new tool lands.
Why PostLab
The team running content for YC founders.
PostLab is built by Rethoric, the agency producing LinkedIn content for B2B SaaS founders generating $1M+ in ARR. We use these tools internally every week.
Real benchmarks
Every ranking is grounded in actual monthly LinkedIn data, not vibes or screenshots from 2022.
Built for founders
No marketing-team jargon. Every output is plain English, written like a founder talking to another founder.
Fast and free
Each tool gives you something useful in under 60 seconds. No demo calls, no paywalls, no upsell flows.
FAQ
Things founders usually ask.
Ready to see how your posts stack up?
Paste your LinkedIn URL. We do the rest in 60 seconds.